CHEMICALS GUIDE

Substances of Concern in the Digital Product Passport: What the ESPR Definition Means for Fashion

Published 26.09.2026 · Reading time ~13 min · by Lior Gabriel Graetz · LG Fashion Labs

The Ecodesign for Sustainable Products Regulation (ESPR), Regulation (EU) 2024/1781, defines a "substance of concern" in Article 2(27) through four alternative descriptions: three refer to other EU chemicals legislation, and one is decided product group by product group. It also provides that, unless a delegated act provides otherwise under Article 7(6), point (b), the information requirements "shall make it possible to track the substances of concern, throughout the life cycle of the products concerned, unless such tracking is already possible pursuant to information requirements laid down in another delegated act adopted pursuant to Article 4 covering the products concerned" (Article 7(5)). This guide sets out what the legal texts, the Commission's FAQs and the Joint Research Centre (JRC) say about the definition, whether it is final and how it reaches the Digital Product Passport (DPP), and where they say nothing.

These rules attach to products covered by an ESPR delegated act. No adoption date has been fixed for the textile (apparel) delegated act: the Commission's textile page lists "Q4 2027: Planned adoption of the ESPR Delegated Act for textiles", and the Commission's DPP timeline lists Q3–Q4 2027 for textiles, aluminium and tyres together; both are marked indicative. Sources: EU legal texts, Commission publications and JRC reports, listed below.

Art. 2(27)

Defines “substance of concern” through four alternative descriptions — three tied to other EU chemicals law, one decided product group by product group.

Art. 7(5)

Requires information that makes it possible to track substances of concern throughout a product's life cycle.

No single list

The Commission's own FAQ confirms there is no central list covering every substance of concern.

1. What the ESPR means by "substance of concern"

Article 2(27) defines a "substance of concern" as "a substance that" fulfils at least one of four descriptions. Point (a): it "meets the criteria laid down in Article 57 of Regulation (EC) No 1907/2006 and is identified in accordance with Article 59(1) of that Regulation", the REACH route for substances of very high concern. Point (b): it "is classified in Part 3 of Annex VI to Regulation (EC) No 1272/2008" in one of thirteen listed hazard classes or categories, among them "carcinogenicity categories 1 and 2", "endocrine disruption for human health categories 1 and 2", "skin sensitisation category 1" and "hazardous to the aquatic environment — categories chronic 1 to 4". Point (c): it "is regulated under Regulation (EU) 2019/1021", the Regulation on persistent organic pollutants (POPs). Point (d): it "negatively affects the reuse and recycling of materials in the product in which it is present".

MEETS AT LEAST ONE OF FOUR

Per the Commission's own ESPR FAQ (Q105) — not all four required, any one is enough.

(a)

REACH SVHC route

Art. 57 criteria, identified on the Candidate List under Art. 59(1)

(b)

CLP hazard class

Annex VI, Part 3 — one of 13 listed hazard classes

(c)

POPs Regulation

Regulated under Reg. (EU) 2019/1021

(d)

Recycling impact

Decided product-group by product-group, Art. 5(14)

The Commission's ESPR FAQ (first edition, September 2024) states that the "or" between the points means "a substance should meet at least one of the four criteria (a, b, c, or d) to be considered a substance of concern" (question 105). For point (b), "only substances with harmonised classification are included, while self-classified substances are not" (question 103).

There is no single list. According to the FAQ, "There is no central list covering all substances of concern that may fall under the definition; however, there are several sources of information that can be consulted for each criterion to identify substances of concern" (question 110). It points to the ECHA Candidate List for point (a), the table in Part 3 of Annex VI to CLP for point (b) and an ECHA table of POPs for point (c), and notes that entries which "refer not only to individual substances, but also to groups of substances" make it "difficult to provide an exact number of substances of concern" (question 111).

2. Is it defined the same way everywhere?

Inside the ESPR, the definition is the same for every product group, except that point (d) is filled in product group by product group: "For each product group concerned by ecodesign requirements, the Commission shall determine, where relevant, which substances fall under the definition in Article 2(27), point (d)", taking into account, at least, whether the substances make reuse or recycling "more complicated, costly, environmentally impactful, or energy- or resource-demanding", impair the properties or value of the recycled material, or "negatively impact aesthetic or olfactory properties of the recycled material" (Article 5(14)).

The Packaging and Packaging Waste Regulation (EU) 2025/40 (PPWR) takes over the ESPR definition: "The definitions of 'substance of concern' and 'data carrier' in Article 2, points (27) and (29), respectively, of Regulation (EU) 2024/1781 apply" (Article 3(1)). The Commission's PPWR FAQ (second edition, DG ENV, August 2026) states that "substances of concern are defined in the same manner in the PPWR and the ESPR" (section III, question 2).

Other acts use the term in their own words. Recital 22 of the Batteries Regulation (EU) 2023/1542 speaks of "substances of concern, defined in the Chemicals Strategy for Sustainability as substances having a chronic effect for human health or the environment". The question put in Q124 of the ESPR FAQ observes that definitions "in different legislation (CSRD, Taxonomy, PPP, ESPR)" are "similar, but not exactly the same". The Commission's answer: "Definitions are tailored to suit the specific scope and goals of the respective legislations", and the Commission "may explore assessing possible alignment in the future".

3. Is the definition final?

The wording of Article 2(27) is fixed law, and the proposals listed on EUR-Lex for the ESPR (checked 26 September 2026) do not amend it. What the four points refer to can still change:

Point of Article 2(27)Refers toHow it changesSource
(a)Substances meeting the REACH Article 57 criteria and identified under Article 59(1) (the Candidate List)ECHA updates the list "without delay after a decision on inclusion of a substance has been taken"; ECHA's page shows 253 entries, the latest added on 4 February 2026REACH Art. 59(10); ECHA Candidate List
(b)Harmonised classification in Part 3 of Annex VI to CLP, in the thirteen listed classesThe Commission amends Annex VI by delegated actsCLP Art. 37(5), as amended by Regulation (EU) 2024/2865
(c)Substances regulated under the POPs RegulationThe Commission amends the Annexes by delegated actsRegulation (EU) 2019/1021, Art. 15(1)
(d)Substances that negatively affect reuse and recyclingDetermined for each product group in its delegated act; the list "may also change over time, subject to a revision of the delegated act"ESPR Art. 5(14); FAQ question 108

The FAQ adds that "There is no automatic inclusion of newly classified substances after the adoption of an ESPR delegated act" (question 112). For a new substance of very high concern identified through REACH, it says "this would likely trigger a tracking requirement for SoC and thus require an update to the DPP", and adds that "Timelines and modalities for such updates would still have to be discussed"; for other types, such as a harmonised classification under CLP or identification as POPs, "any information requirement would require a targeted impact assessment including consultations of stakeholders" (question 125).

Further changes are in preparation. The Commission's REACH page says it "is currently revising the REACH Regulation"; the Have Your Say page for the initiative lists Commission adoption as "Planned for Fourth quarter 2025", a date that has already passed. According to the Parliament's Legislative Train Schedule (information updated as of 20 September 2026), Environment Commissioner Jessica Roswall told the Parliament's environment committee (ENVI) on 27 April 2026 that the Commission had concluded not to open REACH at this point; as read on 13 October 2026, neither page reflects this. For packaging, the Commission, assisted by ECHA, must report by 31 December 2026 on the presence of substances of concern in packaging, to determine "the extent to which they negatively affect the re-use and recycling of materials or impact chemical safety" (PPWR Article 5(2)), and the PPWR FAQ says: "There is no definite number or list of substances of concern (SoC) in packaging", adding that the Commission and ECHA study "will provide a list of SoC on the basis of the information currently available about packaging manufacturing and waste treatment" (section III, question 4). For point (d) generally, the ESPR FAQ said in September 2024 that "currently there are no EU product-specific ecodesign requirements" (question 110).

4. Will substances of concern be in the DPP, and on what basis?

The legal basis is Article 7. The information requirements in a delegated act must "include, as a minimum, requirements related to the digital product passport set out in Chapter III and requirements related to substances of concern set out in paragraph 5" (Article 7(2), point (a)); "Where a delegated act contains horizontal ecodesign requirements, point (a) of this paragraph shall not apply". Under Article 7(5), unless a delegated act provides otherwise under Article 7(6), point (b), the information requirements "shall make it possible to track the substances of concern, throughout the life cycle of the products concerned, unless such tracking is already possible pursuant to information requirements laid down in another delegated act adopted pursuant to Article 4 covering the products concerned". They must include at least the name or code of each substance, its location in the product, its concentration "at the level of the product, its relevant components, or spare parts", "relevant instructions for the safe use of the product" and information for disassembly, reuse, recycling and end-of-life management.

The passport is where the information goes. Where a passport is available, "the required information shall be provided therein" (Article 7(7)), and the tracking information "shall be given either on the product or be accessible through a data carrier included on the product". Annex III, point (a), lists among the elements a delegated act may specify for the passport "information required under Article 7(2), point (b), and Article 7(5) or by other Union law applicable to the relevant product group". Recital 31 states the intent: tracking requirements "should be included by default where an information requirement is to be set under this Regulation, except when such an information requirement is part of horizontal ecodesign requirements".

The Commission's FAQs say the same. ESPR FAQ: "All substances of concern present in a product will have to be tracked by default and information on those substances will be included in the DPP if a DPP is required for the product" (question 46). DPP FAQ: "The information on substances of concern present in a product will be included in the DPP if a DPP is required for the product" (question 27). Working Plan (COM(2025) 187, section 3.2): "Information on material composition and any substances of concern in the product will be included, together with information on how it can be safely used, recycled and disposed of." The 2022 Textiles Strategy (COM(2022) 141) said that clear, structured and accessible information improves communication between actors along value chains, "for example on substances of concern, on repair or on the fibre composition", and that the Commission "will introduce a Digital Product Passport for textiles based on mandatory information requirements on circularity and other key environmental aspects". These FAQs are explanatory. The DPP FAQ says that it "should not be considered as representative of the European Commission's official position", that its replies "do not extend in any way the rights and obligations deriving from applicable legislation" and that the "expressed views are not authoritative"; the ESPR FAQ says it "reflects the views only of the authors".

The details are left to the delegated act. A passport requirement exists only "in accordance with the applicable delegated acts adopted pursuant to Article 4 and with Articles 10 and 11" (Article 9(1)). The Commission "may, where appropriate for the product group concerned, set thresholds for when the information requirement regarding substances of concern is to apply" (Article 7(5)) and, where relevant, lays down dates of application "differentiating between substances of concern where necessary" (Article 7(6), point (a)) and provides "duly justified exemptions" (point (b)). One limit is fixed: "substances of concern within the meaning of Article 2(27), point (a), shall not be exempted if they are present in products, their relevant components or spare parts in a concentration above 0,1 % weight by weight".

For textiles, that act does not exist yet. The Commission's textile page says the requirements "will be defined through the same future delegated act that will introduce the ecodesign requirements themselves", lists possible information such as fibre composition and origin without naming substances of concern, and states: "The exact information requirements will be defined through the relevant delegated acts and supporting technical specifications". No adoption date has been fixed for the textile (apparel) delegated act. The Commission's first ESPR Working Plan (April 2025) gives 2027 as the indicative year; its Digital Product Passport pages list adoption for Q3–Q4 2027 (DPP timeline, together with aluminium and tyres) and for Q4 2027 (textile-apparel page), both marked indicative. The Commission's Have Your Say entry for the act (initiative 16116, published 18 December 2025 and not updated since) still shows "First quarter 2027" for adoption and "Fourth quarter 2025" for a public consultation that has not opened; none of the 2026 Commission or JRC documents reviewed repeats that date. ESPR Article 4(4) provides that a delegated act's date of application shall not be earlier than 18 months from its entry into force, except in duly justified cases; for an act adopted in the second half of 2027 that means 2029 at the earliest (our calculation, not a date the Commission has published).

5. What the JRC proposes for textile apparel

The working document of the JRC's preparatory study on textiles (3rd milestone) covers chemicals in chapter 12. Its cover states: "This is a draft document that has not been adopted or endorsed by the European Commission", and its disclaimer asks that any reference to it "should clearly state its draft character". Its proposals are input to the impact assessment, not rules. On point (d) it says that the substances it lists "are proposed as SoCs (d) due to the regulatory and customer-driven limitations which are already imposed upon them", and concludes: "No conclusive examples have been found, also as corroborated by stakeholder consultation, of specific substances in textile apparel having a negative effect on reuse and recycling, other than those identified as already regulated, as a consequence of their risks to human and environmental health" (section 12.3.11).

On thresholds, it proposes 0.1 % weight by weight for points (a) and (c), and notes that under REACH the threshold "applies in relation to the weight of an article as defined in the REACH Regulation" while the majority of textile products consist of several articles; it therefore presents two calculation options, the weight of the final garment or separate calculations for textile materials and for hard components such as buttons and zippers (section 12.3.12). For point (b) it proposes concentration limits based on GHS cut-off values and CLP generic concentration limits, 0.1 % or 1.0 % depending on the hazard class (Table 105); for point (d), thresholds "in a case-by-case scenario". On exemptions, it proposes one general exemption, so that "only chemical substances remaining in the final product and intentionally added should be subject to mandatory tracking", and sees no solid justification for substance-specific exemptions at this stage (section 12.3.13).

On application dates (section 12.3.14), it proposes 18 months after publication of the delegated act for points (a), (c) and the point (d) substances identified in the delegated act; 36 months for point (b) substances in hazard classes recognised under the GHS; and 8 years for the hazard classes "included under ESPR but not yet considered in GHS" (endocrine disruption; persistent, mobile and toxic properties; persistent, bioaccumulative and toxic properties). On PFAS, it says that after a possible REACH restriction on PFAS that includes textiles, "such substances would, most likely, qualify as SoC (d) due to regulatory limitations".

A second JRC report, the Study on DPP content for textile apparel products under ESPR (González-Torres and Arcipowska, listed with the date 13 May 2026), is an external study prepared for the JRC whose contents "do not necessarily reflect the position or opinion of the European Commission"; the posted file carries a DRAFT watermark. It states: "Information on substances of concern (SoC), as defined in Article 2(27) of the ESPR, is required to be disclosed through the DPP", adding that delegated acts "may require the disclosure, where proportionate and relevant" of specified information, with scope, level of detail and format "to be determined at product-group level", aiming "to provide targeted, actionable information, rather than comprehensive chemical inventories" (section 2.1.2.4).

6. What applies today

ESPR requirements reach a product only through a delegated act: "Products shall comply with information requirements related to the product aspects, as laid down in the delegated acts adopted pursuant to Article 4" (Article 7(1)). The FAQ says requirements on substances of concern "will only apply to selected product groups" (question 104). No delegated act for textiles has been adopted, so the ESPR does not yet oblige a fashion brand to track substances of concern. That gap is specific to the DPP's own tracking duty: REACH itself already restricts individual substances of concern outright, independent of any ESPR delegated act — chromium VI in leather has been banned above 3 mg/kg since 1 May 2015 (REACH Annex XVII, entry 47), and a REACH restriction on PFHxA, already adopted and in force, applies to clothing, accessories and footwear from 10 October 2026 (REACH Annex XVII, entry 79).

Duties on the same substances exist under other laws. Under REACH Article 33, a supplier of an article containing a substance meeting the Article 57 criteria and identified under Article 59(1) "in a concentration above 0,1 % weight by weight (w/w)" must give the recipient "sufficient information, available to the supplier, to allow safe use of the article including, as a minimum, the name of that substance" (Article 33(1)); on a consumer's request, it must be provided "free of charge, within 45 days of receipt of the request" (Article 33(2)). The Waste Framework Directive has Member States ensure that suppliers of articles provide "the information pursuant to Article 33(1) of that Regulation to the European Chemicals Agency as from 5 January 2021" (Article 9(1), point (i)); ECHA's database for that information is SCIP, and ECHA's SCIP page still says that suppliers "have to submit information on these articles to ECHA" (checked 13 October 2026). That duty may end. The Commission's ESPR FAQ of September 2024 said that the Commission "aims at a progressive alignment and integration of SCIP with the DPP as far as technically possible" (question 121), but on 10 December 2025 the Commission proposed instead to stop new submissions. Its proposal for a directive (COM(2025) 986 final, procedure 2025/0394(COD)) would insert a point (ia) in Article 9(1) under which suppliers provide the information "from 5 January 2021 until [date of entry into force of this Directive]", with ECHA to "maintain the data submitted to it". The Commission's press release says SCIP's "functions will be replaced with more effective digital solutions such as the Digital Product Passport and implementation of the One Substance One Assessment package"; the articles and recitals of the proposal contain no such mechanism. The proposal is not law. The Council agreed its negotiating position on 24 June 2026 and keeps the end date; the Parliament's procedure file still read "Awaiting committee decision" on 13 October 2026. Until a directive is adopted and published, the notification duty applies. The proposal does not amend REACH, so the Article 33 duty to give recipients, and on request consumers, the name of a Candidate List substance above 0,1 % weight by weight would continue. Under the POPs Regulation, "The manufacturing, placing on the market and use of substances listed in Annex I, whether on their own, in mixtures or in articles, shall be prohibited, subject to Article 4" (Article 3(1)).

The FAQ marks what would be new: the obligation to provide information with articles, "other than for products containing the substances of concern falling under part a) of the definition is a new supply chain information requirement stemming from the ESPR itself" (question 122). Packaging is already covered: the PPWR applies from 12 August 2026 (Article 71) and requires that "Packaging placed on the market shall be so manufactured that the presence and concentration of substances of concern as constituents of the packaging material or of any of the packaging components is minimised" (Article 5(1)).

7. Reading these rules together

The legal basis is in place up to the delegated act. Article 7(2), point (a), Article 7(5) and recital 31 make tracking of substances of concern the default content of information requirements; Article 7(7) and Annex III, point (a), place it in the passport; and the FAQs and the Working Plan say the same, while the Textiles Strategy names substances of concern as an example of the information to be communicated. What no adopted text provides for textiles is the act itself: which substances are tracked, above which concentration, from which date and with which exemptions. The default has exceptions built in: horizontal acts (Article 7(2)), tracking already possible under another delegated act (Article 7(5)), and Article 4(2), under which a delegated act may provide that no information requirements are set for certain Annex I product parameters where a requirement "would have a negative impact on the ecodesign requirements considered for the product group concerned". The texts reviewed do not say whether Article 4(2) could apply to substances of concern.

Point (a) has the firmest anchor. REACH Article 33 already attaches a duty to the same substances above 0,1 % weight by weight, and Article 7(6), point (b), rules out exemptions above that level. The two texts count the concentration differently: Article 33 refers to "an article", Article 7(6), point (b), to "products, their relevant components or spare parts". The JRC draft notes a related difference, that REACH counts against the weight of an article while the majority of textile products consist of several articles, and offers two calculation options.

For points (b) to (d), the FAQ calls the ESPR duty new, and no adopted text says which of the thirteen hazard classes will be tracked for textiles, or from when. The JRC draft proposes classes and dates, from 18 months to 8 years after publication; Article 4(4) provides that the date of application of a delegated act "shall not be earlier than 18 months from its entry into force", "except in duly justified cases", and Article 7(6), point (a), allows different dates for different substances of concern. Point (d) is the most open: the FAQ stated in September 2024 that "currently there are no EU product-specific ecodesign requirements" for it, the JRC draft found no conclusive textile examples beyond substances already regulated, and the PPWR report on packaging is due on 31 December 2026.

Sources

All sources were accessed and verified directly on EUR-Lex, the European Commission's published FAQs and the Joint Research Centre's Product Bureau site on 26 September 2026. The sources on the SCIP repeal proposal, the revision of REACH and the timing of the textile delegated act (the Commission's DPP pages and Have Your Say initiative 16116) were checked again on 13 October 2026. The underlying lists this definition points to — including ECHA's Candidate List — are updated on a rolling basis; check the live list, not a snapshot, before relying on any specific substance's status. This is general information, not legal, financial or investment advice.

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Frequently asked questions

Does REACH already restrict substances of concern today, without waiting for an ESPR delegated act? +
Yes, for some of them. The ESPR's own tracking duty for the DPP only applies once a delegated act is adopted, but REACH already restricts individual substances of concern outright, independent of that timeline. Chromium VI in leather has been banned above 3 mg/kg since 1 May 2015 (REACH Annex XVII, entry 47), and a REACH restriction on PFHxA, already adopted and in force, applies to clothing, accessories and footwear from 10 October 2026 (REACH Annex XVII, entry 79).
What is a substance of concern under the ESPR? +
Under Article 2(27) of the ESPR, a substance of concern is a substance that meets at least one of four descriptions: (a) it meets the criteria of Article 57 of the REACH Regulation and is identified in accordance with Article 59(1); (b) it is classified in Part 3 of Annex VI to the CLP Regulation in one of thirteen listed hazard classes or categories; (c) it is regulated under the POPs Regulation (EU) 2019/1021; or (d) it negatively affects the reuse and recycling of materials in the product in which it is present. The Commission's ESPR FAQ states that meeting one criterion is enough.
Is the definition of substances of concern the same in the ESPR and the PPWR? +
Yes. Article 3(1) of the Packaging and Packaging Waste Regulation (EU) 2025/40 applies the definition in Article 2, point (27), of the ESPR, and the Commission's PPWR FAQ states that substances of concern are defined in the same manner in both. Other acts use their own wording: recital 22 of the Batteries Regulation (EU) 2023/1542, for example, refers to the description in the Chemicals Strategy for Sustainability.
Will substances of concern be banned? +
Not by the definition itself. The Commission's ESPR FAQ says that being a substance of concern does not mean there will be a ban on the substance, and that for the majority of substances there will likely only be information requirements in product-specific delegated acts. Article 6(3) of the ESPR provides that performance requirements based on Annex I, point (f), shall not restrict, for reasons relating primarily to chemical safety, the presence of substances in products.
Is it certain that substances of concern will be in the textile DPP? +
The ESPR makes tracking of substances of concern the default content of information requirements (Article 7(2), point (a), Article 7(5) and recital 31), and the Commission's FAQs say the information will be included in the DPP if a DPP is required for the product. For textiles, the delegated act that would set the requirements has not been adopted. It may set thresholds and, where relevant, dates of application and exemptions (Article 7(5) and (6)); the FAQs say that thresholds and exemptions will be defined there. Article 7(6), point (b), rules out exemptions for point (a) substances above 0,1 % weight by weight.